CN220896393U - Flat wire motor winding and flat wire motor - Google Patents

Abstract

The utility model provides a flat wire motor winding and a flat wire motor, wherein the flat wire motor winding comprises three-phase flat wire windings which are symmetrically and split-phase distributed in the circumferential direction of an iron core groove, the three-phase flat wire windings comprise wire straight portions, welding ends and power supply leading-out ends, and the wire straight portions are arranged in the iron core groove; the welding ends are arranged at one end of the linear part of the lead, the pitch of the welding ends is equal, and the heights of the outgoing lines of the welding ends are equal; the power supply leading-out end is arranged on one side of the linear part of the lead, which is away from the welding end, and comprises a U-pin wire and a special-shaped wire; the special-shaped wire comprises a U-phase power wire, a V-phase power wire and a W-phase power wire; the U-phase power line, the V-phase power line and the W-phase power line are respectively provided with two special-shaped lines by adopting a triangle connection method, or the U-phase power line, the V-phase power line and the W-phase power line are respectively provided with one special-shaped line, the special-shaped line also comprises three star points which form a star point, and the special-shaped line is in a star connection method. According to the technical scheme, the mass production process difficulty and the production cost of the flat wire motor winding are reduced.

Description

Flat wire motor winding and flat wire motor

Technical Field

The utility model relates to the technical field of flat wire motors, in particular to a flat wire motor winding and a flat wire motor.

Background

In the related art, the problem of multiple winding abnormal lines of the flat wire driving motor of the new energy automobile generally exists, and the end parts of the motor windings are connected through bus bars, so that the mass production manufacturability of the flat wire motor is poor, and the mass production process difficulty and the production cost are increased.

Disclosure of utility model

The utility model mainly aims to provide a flat wire motor winding and a flat wire motor, and aims to reduce the mass production process difficulty and the production cost of the flat wire motor winding.

In order to achieve the above object, the present utility model provides a flat wire motor winding, including a three-phase flat wire winding symmetrically split-phase distributed in a circumferential direction of an iron core slot, the three-phase flat wire winding including:

a wire straight portion provided in the core slot;

The welding ends are arranged at one end of the linear part of the lead, the pitches of the welding ends are equal, and the heights of the outgoing lines of the welding ends are equal;

The power supply leading-out end is arranged on one side of the linear part of the lead, which is away from the welding end, and comprises a U-pin wire and a special-shaped wire;

The special-shaped wire comprises a U-phase power wire, a V-phase power wire and a W-phase power wire;

The U-phase power line, the V-phase power line and the W-phase power line are respectively provided with two special-shaped lines, wherein the special-shaped lines adopt a triangle connection method, or the U-phase power line, the V-phase power line and the W-phase power line are respectively provided with one special-shaped line, the special-shaped lines also comprise three star points and three star point lines, the star points are formed by the three star point lines, and the special-shaped lines adopt a star connection method.

Optionally, the three-phase flat wire winding is a multi-layer winding, each phase winding is composed of one branch, and the number of layers of the winding is an even number not less than four.

Optionally, the multi-layer winding comprises a top layer winding, a plurality of middle layer windings and a bottom layer winding which are sequentially arranged, wherein the number of layers of the middle layer windings is an even number not less than two;

And defining two adjacent middle-layer windings as a group, wherein each group of middle-layer windings are connected through a cross-layer wire.

Optionally, the three-phase flat wire winding is a distributed winding, and the main body is in a wave winding form;

Each phase of wave winding comprises a forward wave winding and a reverse wave winding, the directions of the forward wave winding and the reverse wave winding are opposite, and the wave winding rules are consistent.

Optionally, the forward wave winding and the backward wave winding are connected through a cross-layer line, and the cross-layer line is arranged in a same-layer cross-layer manner.

Optionally, the cross-layer wires are distributed in the bottom layer winding.

Optionally, the special-shaped wires are all distributed at the end part of the top layer winding of the power supply leading-out end.

Optionally, the pitch of the three-phase flat wire winding is short-distance and/or full-distance and/or long-distance.

The utility model also provides a flat wire motor, which comprises a stator core and the flat wire motor winding, wherein an iron core groove is formed in the stator core, a plurality of wire grooves are sequentially formed in the groove wall of the iron core groove at intervals along the circumferential direction of the iron core groove, and the wire straight line parts of the flat wire motor winding are uniformly distributed in the wire grooves.

Optionally, the flat wire motor is one of a hexapole thirty-six slot motor, a hexapole fifty-four slot motor, a hexapole seventy-two slot motor, an octapole forty-eight slot motor, an octapole sixty-slot motor, an octapole seventy-two slot motor, and an octapole ninety-six slot motor.

According to the technical scheme, the winding welding ends of the flat wire motor winding are arranged at equal pitches, the axial heights are equal, the circumferential distribution rule is consistent, and the star connection method or the triangle connection method can be adopted.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a three-phase winding principle development wiring diagram of a flat wire motor winding embodiment one of the present utility model;

FIG. 2 is a schematic expanded wiring diagram of the U-phase winding principle of the flat wire motor winding of FIG. 1;

FIG. 3 is a three-phase winding principle unwind wiring diagram of a second embodiment of a flat wire motor winding of the present utility model;

Fig. 4 is a U-phase winding principle development wiring diagram of the flat wire motor winding of fig. 3.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a flat wire motor winding.

Referring to fig. 1 to 4, in some embodiments of the present utility model, a flat wire motor winding includes three-phase flat wire windings symmetrically split-phase distributed in a circumferential direction of a core slot, the three-phase flat wire windings including:

a wire straight portion provided in the core slot;

The welding ends are arranged at one end of the linear part of the lead, the pitches of the welding ends are equal, and the heights of the outgoing lines of the welding ends are equal;

The power supply leading-out end is arranged on one side of the linear part of the lead, which is away from the welding end, and comprises a U-pin wire and a special-shaped wire;

The special-shaped wire comprises a U-phase power wire, a V-phase power wire and a W-phase power wire;

The U-phase power line, the V-phase power line and the W-phase power line are respectively provided with two special-shaped lines, wherein the special-shaped lines adopt a triangle connection method, or the U-phase power line, the V-phase power line and the W-phase power line are respectively provided with one special-shaped line, the special-shaped lines also comprise three star points and three star point lines, the star points are formed by the three star point lines, and the special-shaped lines adopt a star connection method.

Compared with the prior art, the flat wire motor winding of the novel energy automobile has the advantages that the flat wire motor driving motor is large in number of abnormal lines and is connected by the bus bars, the winding end part of the flat wire motor winding does not need bus bar connection, the structure is simple, and mass production manufacturability is facilitated. Moreover, the welding ends of the windings are equal in pitch, the axial heights are equal, the circumferential distribution rule is consistent, the automatic flaring, twisting, head cutting, welding and coating equivalent production processes are facilitated, the complexity of automatic equipment is reduced, the automatic mass production is facilitated, the platform compatibility is good, the equipment die is saved, in addition, the current balance of the three-phase windings can be realized, and the performance influence caused by current unbalance is solved.

Further, in some embodiments of the flat wire motor winding of the utility model, the three-phase flat wire winding is a multi-layer winding, each phase winding is composed of one branch, and the number of winding layers is an even number not less than four.

In this embodiment, the number of layers of the three-phase flat wire winding may be, but not limited to, four, six, eight, ten, etc., and the specific embodiment may be set according to the actual requirement, which is not limited herein.

Further, in some embodiments of the flat wire motor winding of the utility model, the multi-layer winding includes a top layer winding, a plurality of middle layer windings and a bottom layer winding which are sequentially arranged, wherein the number of layers of the middle layer windings is an even number not less than two;

And defining two adjacent middle-layer windings as a group, wherein each group of middle-layer windings are connected through a cross-layer wire.

In this embodiment, two adjacent winding layers of each group of the middle winding are connected by a cross-layer wire, for example, the cross-layer wire may cross from the second layer to the third layer, or from the fourth layer to the fifth layer, and the sixth layer to the seventh layer, which may be arranged according to the layer number of the windings according to rules, and will not be described herein.

It should be noted that, two cross-layer wires are connected between two adjacent windings of each set of middle layer windings, one cross-layer wire spans from left to right to the next layer along the forward wave winding form, and correspondingly, the other cross-layer wire spans from right to left to the next layer along the reverse wave winding form.

In some embodiments of the inventive flat wire motor winding, the three-phase flat wire winding is a distributed winding, the body being in the form of a wave winding;

Each phase of wave winding comprises a forward wave winding and a reverse wave winding, the directions of the forward wave winding and the reverse wave winding are opposite, and the wave winding rules are consistent.

Therefore, the circumference distribution rule of the winding is consistent, the automatic flaring, twisting, head cutting, welding and coating equivalent production processes are facilitated, the complexity of automatic equipment can be reduced, the automatic mass production is facilitated, the platform compatibility is good, and the equipment die is saved.

In some embodiments of the inventive flat wire motor winding, the forward winding and the reverse winding are connected by a cross-layer wire, the cross-layer wire being a same-layer cross-layer arrangement. And, the cross-layer wire is distributed in the bottom layer winding.

In some embodiments of the inventive flat wire motor winding, the pitch of the three-phase flat wire winding is short and/or full and/or long.

In this embodiment, the pitch of the three-phase flat wire winding may be short, full or long, and in other embodiments, a hybrid pitch winding may be also used, and the specific embodiment may be set according to the actual requirement.

In some embodiments of the inventive flat wire motor winding, the profiled wires are distributed at the ends of the top winding of the power outlet.

Thus, the ends of the flat wire motor windings are not required to be connected by a bus bar. Simple structure and is beneficial to mass production manufacturability.

In particular, the profiled wire of the flat wire motor winding may be delta-connected or star-connected. For the triangle connection method, two U-phase power lines, two V-phase power lines and two W-phase power lines are distributed on a first layer of windings of a power supply leading-out end of a flat wire motor winding, and other abnormal lines are not present; for star connection, a U-phase power line, a V-phase power line, a W-phase power line and three star point connecting lines are distributed on a first layer of windings of a power supply leading-out end of a flat wire motor winding, and other abnormal lines do not exist.

The flat wire motor winding of the present utility model will be described below with examples.

Referring to fig. 1 and 3, in the first embodiment of the present utility model, the flat wire motor winding is a balanced winding structure applied to a hexapole fifty-four slot flat copper wire motor, 6 flat copper wires as conductors are provided in each slot number of the core slot, and the flat wire motor winding adopts a short distance with a pitch of eight. The straight line part of the wire of the flat wire motor winding is equally divided into a U-phase winding, a V-phase winding and a W-phase winding of the three-phase symmetrical winding.

For the U-phase winding of the first embodiment, the U-phase winding is composed of a forward wave winding and a reverse wave winding. The head end U1 of the U-phase winding enters from the 3 slots L1, is wound from left to right in a forward wave winding mode, and sequentially enters in a mixed pitch winding mode: 11 slots L2→21 slots L1→29 slots L2→39 slots L1→47 slots L2→2 slots L1→10 slots L2→20 slots L1→28 slots L2→38 slots L1→46 slots L2→1 slots L1→9 slots L2→19 slots L1→27 slots L2→37 slots L1→45 slots L2; then, the first layer and the second layer are connected with each other by a pitch of twelve values from 45 slots L2 to 3 slots L3, namely, the first layer and the second layer are sequentially connected with each other: 11 slots L4→21 slots L3→29 slots L4→39 slots L3→47 slots L4→2 slots L3→10 slots L4→20 slots L3→28 slots L4→38 slots L3→46 slots L4→1 slots L3→9 slots L4→19 slots L3→27 slots L4→37 slots L3→45 slots L4; then, the first layer and the second layer are connected with each other by a pitch of twelve values from 45 slots L4 to 3 slots L5, namely, the first layer and the second layer are sequentially connected with each other: 11 slots L6→21 slots L5,29 slots L6→39 slots L5→47 slots L6→2 slots L5→10 slots L6→20 slots L5→28 slots L6→38 slots L5→46 slots L6→1 slots L5→9 slots L6→19 slots L5→27 slots L6→37 slots L5→45 slots L6; then, the forward wave winding of the U-phase winding is completed, and the same layer is led out to the start slot 54 slot L6 of the reverse wave winding.

Further, the reverse wave winding starts from the 54 groove L6, the right wave winding is performed to the left wave winding according to the same rule of the forward wave winding, the sixth layer and the fifth layer are sequentially crossed to the fourth layer and the third layer, then the fifth layer and the third layer are crossed, finally the tail end X1 is led out from the 12 groove L1, and the reverse wave winding of the U-phase winding is completed.

Similarly, the V-phase winding is also formed by forward wave winding and reverse wave winding, the head end V1 of the V-phase winding starts forward wave winding from 9 slots L1, then leads out from 42 slots L6, spans the same layer to the start slot 51 slot L6 of reverse wave winding, and finally leads out the tail end Y1 from 54 slots L1. Wherein Y1 of the V-phase winding is distributed on the left side of V1, and is different from the rule that X1 of the U-phase winding is distributed on the right side of U1, and mainly for the purpose of narrowing the span of outgoing lines of each phase of power supply, the outgoing lines are led out from 18 slots L1 to 54 slots L1 in an integral shifting way.

Similarly, the W-phase winding is also formed by forward wave winding and reverse wave winding, the head end W1 of the W-phase winding starts forward wave winding from 15 slots L1, then is led out from 48 slots L6, and spans to the initial slot 3 slot L6 of reverse wave winding in the same layer, and finally the tail end Z1 is led out from 6 slots L1. Similarly, W1 of the W-phase winding is distributed on the left side of Z1, and the lead-out wire is entirely shifted from 24 slots L1 to 6 slots L1 mainly for the purpose of narrowing the lead-out wire of each phase.

Further, the special-shaped line comprises two U-phase power lines U1 and Y1, two V-phase power lines V1 and Z1 and two W-phase power lines W1 and X1, a triangle connection method is adopted, and the three-phase arrangement spaces are not crossed. And the special-shaped wires are distributed on the first layer of the winding, and no other special-shaped connecting wires exist.

Referring to fig. 2 and 4, in the second embodiment of the present utility model, the flat wire motor winding is a balanced winding structure applied to a hexapole fifty-four slot flat copper wire motor, 6 flat copper wires as conductors are provided in each slot number of the core slot, and the flat wire motor winding adopts an integral pitch of nine pitches. The straight line part of the wire of the flat wire motor winding is equally divided into a U-phase winding, a V-phase winding and a W-phase winding of the three-phase symmetrical winding.

For the U-phase winding of the second embodiment, the U-phase winding is composed of a forward wave winding and a reverse wave winding. The head end U1 of the U-phase winding enters from a slot L1 of a winding 3, is wound from left to right in a forward wave winding mode, and sequentially enters in a mixed pitch winding mode: 12 slots L2→21 slots L1→30 slots L2→39 slots L1→48 slots L2→2 slots L1→11 slots L2→20 slots L1→29 slots L2→38 slots L1→47 slots L2→1 slots L1→10 slots L2→19 slots L1→28 slots L2→37 slots L1→46 slots L2; then, the first layer and the second layer are connected with each other by crossing from 46 slots L2 to 3 slots L3 at a pitch with a value of eleven, namely, the first layer and the second layer are connected with each other sequentially: 12 slots L4→21 slots L3→30 slots L4→39 slots L3→48 slots L4→2 slots L3→11 slots L4→20 slots L3→29 slots L4→38 slots L3→47 slots L4→1 slots L3→10 slots L4→19 slots L3→28 slots L4→37 slots L3→46 slots L4; then, the first layer and the second layer are connected with each other by a pitch of twelve values from 45 slots L4 to 3 slots L5, namely, the first layer and the second layer are sequentially connected with each other: 3 slot L5, then enter 12 slot L6→21 slot L5,30 slot L6→39 slot L5→48 slot L6→2 slot L5→11 slot L6→20 slot L5→29 slot L6→38 slot L5→47 slot L6→1 slot L5→10 slot L6→19 slot L5→28 slot L6→37 slot L5→46 slot L6 in the same rule as the first layer and the second layer, and then are led out to the initial slot 1 slot L6 of the reverse wave winding in the same layer.

Further, the reverse wave winding starts from the 1 slot L6, the right wave winding is performed to the left wave winding according to the same rule of the forward wave winding, the sixth layer and the fifth layer span wires to the fourth layer and the third layer, then the fifth layer and the third layer span wires, finally the third layer and the third layer are led out from the 12 slot L1, and the reverse wave winding of the U-phase winding is completed.

Similarly, the V-phase winding is also formed by forward wave winding and reverse wave winding, and the head end V1 of the V-phase winding starts forward wave winding from 9 slots L1, then leads out from 43 slots L6, spans to the start slot 52 slot L6 of reverse wave winding in the same layer, and finally leads out from 54 slots L1.

Similarly, the W-phase winding is also formed by forward wave winding and reverse wave winding, the front end W1 of the W-phase winding starts forward wave winding from 15 slots L1, then from 49 slots of the sixth layer L6, and spans from the same layer to the starting slot 4 slots L6 of the reverse wave winding, and finally is led out from the 6 slots of the first layer L1.

Further, the special-shaped line comprises a U-phase power line U1, a V-phase power line V1 and a W-phase power line W1, and the three-phase arrangement spaces are not crossed. And the special-shaped wire also comprises star points formed by three star point lines X1, Y1 and Z1, the three-phase power line and the star point lines are distributed on the first layer of the winding, and no other special-shaped connecting wires exist.

The utility model also provides a flat wire motor, which comprises the flat wire motor winding in any embodiment, and the specific structure of the flat wire motor winding refers to any embodiment. The flat wire motor provided by the utility model can be applied to all the technical schemes in all the embodiments, so that the flat wire motor at least has all the beneficial effects brought by the technical schemes, and the description is omitted herein.

In some embodiments of the flat wire motor winding, the flat wire motor comprises a stator core, wherein an iron core groove is formed in the stator core, a plurality of wire grooves are sequentially formed in the groove wall of the iron core groove at intervals along the circumferential direction of the iron core groove, the wire straight line parts of the flat wire motor winding are uniformly distributed in the wire grooves, and even-numbered layers of conductors with the number of layers not less than four are sequentially arranged in each conductor groove along the groove depth direction of the conductor groove.

In some embodiments, the motor is one of a common hexapole thirty-six slot motor, a hexapole fifty-four slot motor, a hexapole seventy-two slot motor, an octapole forty-eight slot motor, an octapole sixty-slot motor, an octapole seventy-two slot motor and an octapole ninety-six slot motor, and of course, the technical scheme of the utility model is not limited to the above, the flat wire motor winding can also be suitable for other stage slot matching type motors, and specific embodiments can be set according to actual requirements.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. The utility model provides a flat wire motor winding, its characterized in that includes the three-phase flat wire winding with the symmetrical split phase distribution of iron core slot circumferencial direction, three-phase flat wire winding includes:

a wire straight portion provided in the core slot;

The welding ends are arranged at one end of the linear part of the lead, the pitches of the welding ends are equal, and the heights of the outgoing lines of the welding ends are equal;

The power supply leading-out end is arranged on one side of the linear part of the lead, which is away from the welding end, and comprises a U-pin wire and a special-shaped wire;

The special-shaped wire comprises a U-phase power wire, a V-phase power wire and a W-phase power wire;

The U-phase power line, the V-phase power line and the W-phase power line are respectively provided with two special-shaped lines, wherein the special-shaped lines adopt a triangle connection method, or the U-phase power line, the V-phase power line and the W-phase power line are respectively provided with one special-shaped line, the special-shaped lines also comprise three star points and three star point lines, the star points are formed by the three star point lines, and the special-shaped lines adopt a star connection method.

2. The flat wire motor winding according to claim 1, wherein the three-phase flat wire winding is a multi-layer winding, each phase winding is composed of one branch, and the number of winding layers is an even number of not less than four.

3. The flat wire motor winding according to claim 2, wherein the multi-layer winding comprises a top layer winding, a plurality of middle layer windings and a bottom layer winding which are sequentially arranged, and the number of layers of the middle layer windings is an even number not less than two;

And defining two adjacent middle-layer windings as a group, wherein each group of middle-layer windings are connected through a cross-layer wire.

4. A flat wire motor winding according to claim 3, wherein the three-phase flat wire winding is a distributed winding, the body being in the form of a wave winding;

Each phase of wave winding comprises a forward wave winding and a reverse wave winding, the directions of the forward wave winding and the reverse wave winding are opposite, and the wave winding rules are consistent.

5. The flat wire motor winding of claim 4 wherein said forward winding and said reverse winding are connected by a cross-layer wire, said cross-layer wire being co-layer cross-layer.

6. The flat wire motor winding of claim 5 wherein said cross-layer wire is distributed across said bottom layer winding.

7. A flat wire motor winding according to claim 3, wherein the profiled wires are distributed at the ends of the top winding of the power outlet.

8. The flat wire motor winding according to any one of claims 1 to 6, wherein the pitch of the three-phase flat wire winding is short and/or full and/or long.

9. A flat wire motor comprising a stator core and the flat wire motor winding as claimed in any one of claims 1 to 8;

An iron core groove is formed in the stator iron core, a plurality of wire grooves are sequentially formed in the groove wall of the iron core groove at intervals along the circumferential direction of the iron core groove, and the wire straight line parts of the flat wire motor winding are uniformly distributed in the plurality of wire grooves.

10. The flat wire motor of claim 9, wherein the flat wire motor is one of a hexapole thirty-six slot motor, a hexapole fifty-four slot motor, a hexapole seventy-two slot motor, an octapole forty-eight slot motor, an octapole sixty slot motor, an octapole seventy-two slot motor, an octapole ninety-six slot motor.